cmlib/CMLibBreathe.cmake

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CMake
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set(BREATHE_FOUND AUTO CACHE STRING "Enable Breathe documentation generator")
set_property(CACHE BREATHE_FOUND PROPERTY STRINGS ON OFF AUTO)
find_package(Doxygen)
find_package(Perl)
set(Python_ADDITIONAL_VERSIONS 3.7 3.6 3.5 3.4 3.3 3.2)
find_package(PythonInterp)
if (PYTHONINTERP_FOUND)
find_package(Sphinx)
include(FindPythonModule)
find_python_module(breathe)
find_python_module(recommonmark)
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if(DOXYGEN_FOUND AND PERL_FOUND AND PYTHONINTERP_FOUND AND SPHINX_EXECUTABLE AND breathe AND recommonmark)
set(BREATHE_FOUND ON CACHE STRING "Breathe documentation generator enabled" FORCE)
else()
set(BREATHE_FOUND OFF CACHE STRING "Breathe documentation generator disabled" FORCE)
endif()
else()
set(BREATHE_FOUND OFF CACHE STRING "Breathe documentation generator disabled" FORCE)
endif()
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function(add_breathe_target)
if(BREATHE_FOUND)
set(options)
set(oneValueArgs SOURCE_DIR BUILD_DIR CACHE_DIR HTML_DIR DOXY_FILE CONF_FILE TARGET_NAME COMMENT)
set(multiValueArgs)
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cmake_parse_arguments(_BREATHE "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
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configure_file(${_BREATHE_CONF_FILE} ${_BREATHE_BUILD_DIR}/conf.py @ONLY)
configure_file(${_BREATHE_DOXY_FILE} ${_BREATHE_BUILD_DIR}/Doxyfile @ONLY)
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add_custom_target(${_BREATHE_TARGET_NAME} VERBATIM
COMMAND ${SPHINX_EXECUTABLE} -q -b html -c ${_BREATHE_BUILD_DIR}
-d ${_BREATHE_CACHE_DIR}
${_BREATHE_SOURCE_DIR}
${_BREATHE_HTML_DIR}
COMMENT "Building ${_BREATHE_TARGET_NAME} documentation with Breathe"
)
else()
add_custom_target(${_BREATHE_TARGET_NAME} VERBATIM
COMMENT "Breathe is not found. Skipping target ${_BREATHE_TARGET_NAME} build")
endif()
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endfunction()